I don't think he is a mutant there is to much blood and not enough tissue

Actually, there might be a chance that he is. Well, sort of.There's a condition called diphallia, which as it sounds, means having 2 phalluses. Two dongs. In that guy's case, he may have partial diphallia. It looks like he's got 2 dongs grafted into 1, merging at the head.

This is just a theory, though. I don't know if that's really possible. (The partial bit, not the having 2 penises. That's been documented.)